WO2007052734A1 - Dossier de chaise - Google Patents

Dossier de chaise Download PDF

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Publication number
WO2007052734A1
WO2007052734A1 PCT/JP2006/321942 JP2006321942W WO2007052734A1 WO 2007052734 A1 WO2007052734 A1 WO 2007052734A1 JP 2006321942 W JP2006321942 W JP 2006321942W WO 2007052734 A1 WO2007052734 A1 WO 2007052734A1
Authority
WO
WIPO (PCT)
Prior art keywords
chair
frame
back plate
backrest device
back frame
Prior art date
Application number
PCT/JP2006/321942
Other languages
English (en)
Japanese (ja)
Inventor
Ryo Igarashi
Hiroaki Tsukiji
Hiroshi Masunaga
Original Assignee
Okamura Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Okamura Corporation filed Critical Okamura Corporation
Priority to EP06822862.6A priority Critical patent/EP1946677B1/fr
Priority to CA2628209A priority patent/CA2628209C/fr
Priority to CN200680041240XA priority patent/CN101415352B/zh
Priority to US12/092,290 priority patent/US8191970B2/en
Publication of WO2007052734A1 publication Critical patent/WO2007052734A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/445—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with bar or leaf springs

Definitions

  • the present invention relates to a chair backrest device having a flexible back plate for supporting a back of a seated person inside a back frame supported by legs.
  • Patent Document 1 JP 2002-125797
  • Patent Document 2 Japanese Patent Laid-Open No. 2005-160558 (FIGS. 10 to 17)
  • the entire back plate is curved in the shape of a convex curve in the rear, but as described above, it is uniform. Simply forming a large number of openings in a thick backplate makes it difficult to confuse it.
  • the left and right back frames are attached to the left and right dorsal fins fixed to the legs so as to push the back.
  • it In order to improve the seating comfort by effectively folding the inner back plate of the back frame backward, it has a relatively circular cross-sectional shape with a high bending rigidity.
  • the entire back plate is thin, but the back frame is too thick to stand out, making it look bad.
  • the left and right back frames described in FIG. 10 have a substantially circular cross section and have increased bending rigidity, as described above. Is bad.
  • the back frame shown in Fig. 12 has a flat plate-like cross section in plan view, so that when a backward load is applied to the inner back plate, which has low bending rigidity, the back frame is also moved rearward. There is a risk that the amount of stagnation behind the back plate will be reduced.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a chair backrest device that can comfortably support the back with a back plate and improve sitting comfort. Another object of the present invention is to solve the following as a more specific problem for solving the common problem.
  • (C) A chair backrest device that supports the upper part of the back comfortably and improves the sitting comfort by making the back frame and back plate easier to squeeze backwards upward. provide.
  • the back frame has a relatively thin cross-sectional shape, so that the appearance is improved and the bending rigidity of the back frame is increased so that the back plate can be swung back effectively.
  • a chair backrest device
  • a chair backrest device having a flexible back plate on the inner side of the back frame where the lower left and right sides are supported by the rear both sides of the leg, the back plate is vertically and horizontally A large number of openings lined up close to each other are made, and the longitudinal dimension of the connecting piece that is continuous in the vertical direction between the openings adjacent to the left and right is made larger than the left and right dimensions.
  • the cross-sectional shape of the connecting piece between the vertically adjacent openings and the connecting piece continuous in the vertical direction on both sides thereof is a backward U-shape in plan view.
  • the opening has a vertically long slit shape.
  • a backrest device for a chair having a flexible back plate on the inner side of a back frame in which lower ends on both left and right sides are supported by both rear side portions of the leg, and the back frame The thickness of the left and right side frames and the back plate is gradually reduced according to the upward force.
  • the back plate is large.
  • a number of non-circular openings of equal length are formed so as to be close to each other in the vertical and horizontal directions, and a connecting piece that connects adjacent openings in the vertical and horizontal directions so as to surround each opening.
  • the front and rear dimensions of are larger than the wall thickness.
  • the opening is a horizontally expanded polygon.
  • a backrest device for a chair having a flexible back plate on the inner side of a back frame in which lower left and right sides are supported by both rear side portions of a leg,
  • the side frame and the lower frame at the lower end are formed in a plate shape, and each side frame and the lower frame have a U-shaped concave groove that opens outward and a U-shaped groove that opens downward.
  • a concave groove is provided, and the opposing surfaces of both concave grooves are connected by a plurality of flat ribs facing in the front-rear direction.
  • the back frame and the back plate are integrally formed of a synthetic resin so as to be continuous with each other.
  • the ribs in the groove in the side frame are provided at predetermined intervals in the vertical direction so as to be substantially horizontal, and the ribs in the groove in the lower frame Are provided at predetermined intervals in the left-right direction so as to be substantially vertical.
  • the thickness of the back plate is gradually reduced from both sides toward the center.
  • a backrest supporting rod is provided on both rear sides of the leg, and a back frame attaching rod provided on the upper end thereof is directed upward. Mount the bottom frame of the back frame to the both sides of the back of the leg via the back support rod by fitting the mounting holes that open downward in the bottom frame of the side frame and fixing them with screws. .
  • the back frame mounting rod is a square shaft
  • the mounting hole is a square hole that complements the back frame mounting rod.
  • the back frame mounting rod is provided at the upper end of a shaft-shaped support portion facing in the left-right direction fixed to the upper end of the backrest support rod.
  • the lower end of the side frame fitted to the back frame mounting rod is fitted to the upper surface of the support part.
  • the connecting piece since the front-rear dimension of the connecting piece between the left and right openings is larger than the left-right dimension, the connecting piece has a long rectangular cross section in the front-rear direction, ie, the front-rear direction perpendicular to the width direction of the backboard, that is, the left-right direction.
  • the bending rigidity in the front-rear direction is increased with respect to the openings arranged in a row. Therefore, there is no risk that the strength of the back plate will decrease despite the fact that a large number of openings are formed.
  • the back is pressed against the back plate.
  • the rear side of the back plate expands outwardly with the openings arranged in the vertical direction as the center, so that the entire back plate can easily squeeze into a convex curved shape. Therefore, the front of the back plate fits over the entire back, providing a comfortable sitting comfort.
  • the back plate when a load on the back of the seated person is applied to the back plate, the back plate protrudes rearward with the longitudinal slit-like opening as the center so as to fit the back.
  • the seating comfort is further improved.
  • the connecting piece formed between the openings arranged in the vertical direction Since they are alternately displaced up and down along the direction and do not line up in a horizontal line, appropriate bending resistance is imparted to the entire back plate, and its strength can be maintained.
  • the back plate is provided with an appropriate bending resistance and is rearward by making the longitudinal dimension of the connecting piece surrounding each opening in the back plate larger than the thickness.
  • concave grooves are provided on the outer surface of the side frame and the lower surface of the lower frame of the back frame, respectively, and are opened to the outside and below, and the opposing surfaces thereof are arranged.
  • the back frame has a plate shape, but the bending rigidity in the front-rear direction is increased, and when the back plate is pressed by the back of the seated person , The back plate can be folded back effectively and the sitting comfort is improved.
  • the back frame and the back plate are formed in a plate shape that is continuous with each other, they exhibit a sense of unity and the appearance is improved.
  • the central portion of the back plate to which the greatest pressing force is applied to the back has a lower bending rigidity and can be easily squeezed rearward. Therefore, the entire back is comfortably supported and the sitting comfort is improved.
  • the back frame can be easily attached to the backrest support rod from above, and the lower end portion of the side frame is attached to the backframe attachment rod at the upper end of the backrest support rod. Since the lower end of the back frame has a large bending rigidity, the upper portion of the back plate can be effectively folded backward. Therefore, the upper back is comfortably supported. Be held.
  • the cross-sectional area of the back frame mounting rod and the mounting hole is larger than that of a circle or the like, and the contact area of the fitting portion is also increased.
  • the mounting strength and bending rigidity at the lower end of the frame are increased.
  • the lower end of the side frame is fitted to the upper surface of the shaft-like support portion that faces the left-right direction of the upper end of the backrest support rod, the lower end of the back frame is The wobbling in the direction is prevented, and the lower end of the back frame can be stably attached to the upper end of the backrest support rod.
  • FIG. 1 is a front view of a chair to which the present invention is applied.
  • FIG. 2 is a side view of the same.
  • FIG. 3 is a front perspective view of the same.
  • FIG. 4 is an enlarged front view of the same backrest.
  • FIG. 5 is an exploded perspective view of the same backrest and armrest mounting portion.
  • FIG. 6 An enlarged vertical side view of the VI-VI line in Fig. 4.
  • FIG. 7 is an enlarged vertical side view of the same VII-VII line.
  • FIG. 8 is an enlarged cross-sectional plan view of the same VIII-VIII line.
  • FIG. 10 is an enlarged front view of a part of the back plate.
  • FIG. 11 is an enlarged cross-sectional plan view taken along line XI—XI in FIG.
  • FIG. 12 is a front view of another chair to which the present invention is applied.
  • FIG. 13 is an enlarged front view of the same backrest.
  • FIG. 14 is an enlarged vertical side view taken along line XIV—XIV in FIG.
  • FIG. 15 is an enlarged cross-sectional plan view of the same XV-XV line.
  • FIG. 16 is an enlarged front view of a part of the back plate.
  • FIG. 17 is an enlarged cross-sectional plan view taken along line XVII—XVII in FIG.
  • FIG. 1 is a front view of a chair to which the present invention is applied
  • FIG. 2 is a side view
  • FIG. 3 is a front perspective view
  • FIG. 4 is an enlarged front view of a backrest.
  • the chair (1) has a leg (4) having five leg rods (3) facing the radial direction with a caster (2) attached to the tip, and a leg (4) standing in the center of the chair (1).
  • a gas spring (not shown)
  • a leg column (5) that can be expanded and contracted, and a support base (6) fixed to the upper end of the leg column (5) are provided.
  • a seat support frame (7) that faces diagonally forward is connected in a body-like manner, and is slightly more than the pedestal (5) in the support base (6).
  • Fig. 5 (only one is shown because it is bilaterally symmetrical) on both sides of the rear, it forms a V-shape that opens obliquely forward and downward in a side view, and its lower end has an inward L-shape.
  • a pair of right and left bent back support rods (8) and (8) are connected to a pivotal portion (8a) at the inner end of the inwardly bent portion and a rubber torsion unit (shown in the figure) It is attached so as to be pivotable in the front-rear direction with a forward biasing force applied.
  • the left and right sides of the rear end of the seat plate (10) are pivotally attached to the upper ends of the left and right backrest support rods (8) as follows. That is, a pair of left and right support pieces (11X11) are erected on the upper end edge of the rear end portion of the seat plate (10), and are fixed to the outer side surfaces of both support pieces (11) by a countersunk screw (12a). As shown in Fig.
  • the upper ends of the pair of seat support brackets (12) are attached to the inner surface of the shaft-like support section (13) facing the left and right direction fixed to the upper end of the backrest support ridge (8).
  • the left and right sides of the rear end of the seat plate (10) can be tilted back by the upper ends of the left and right backrest support rods (8) by loosely fitting to the protruding inward angular shaft (13a) It is supported by.
  • the inner end portion of the angular shaft (13a) has a shaft-like portion (14a) at the lower end of a back frame mounting rod (14) that supports the lower end portion of the backrest (19), which will be described later.
  • a square hole (14b) is fitted in a non-rotatable manner so as to sandwich the seat support bracket (12) through a plain washer (15) and a two-part structure bush (16X16).
  • the bolt (17) inserted from the outside of the support portion (13) is fixed by being screwed into the internal thread (not shown) inside the shaft-like portion (14a) through the square shaft (13a). !
  • [0050] (18X18) are caps fixed to the opening on the outer surface of the shaft-shaped support portion (13) and the opening on the inner surface of the shaft-shaped portion (14a) of the back frame mounting rod (14), respectively.
  • the head and tip of the bolt (17) are concealed.
  • (19) is a plate-like backrest, which comprises a back frame (20) having a substantially rectangular frame shape when viewed from the front, and a back plate (21) surrounded by the back frame (21), and is integrally molded with a synthetic resin.
  • a back frame (20) having a substantially rectangular frame shape when viewed from the front
  • a back plate (21) surrounded by the back frame (21)
  • the lower portions of the left and right side frames (20aX20a) of the back frame (20) are slightly expanded outward, and the lower end is directed to the backrest support ridge (8).
  • the mounting part (20cX20c) is connected downward.
  • the side frame (20a) has a plate shape continuous with the back plate (21), and its front-rear dimension (thickness) is the lower end as shown in the side view of FIG. 2 and the longitudinal sectional view of FIG.
  • the section is formed so that it gradually becomes smaller toward the larger upper end, and the cross-sectional shape thereof is an outwardly U-shaped plan view as shown in FIGS.
  • a concave groove (22) is formed to the vicinity of the upper end.
  • Opposing surfaces of the concave groove (22) except for the lower end are connected at regular intervals by a plurality of substantially flat plate-like ribs (23), and the front and rear sides of the side frame (20a). The bending rigidity in the direction is increased.
  • the lower frame (20b) that is curved in an arc shape at the lower end of the back frame (20) has a plate shape that is continuous with the back plate (21), and the cross-sectional shape thereof is shown in a side view as shown in FIG.
  • the opposing faces of the concave groove (24) formed in the lower surface and opened downward on the lower surface are connected by a large number of substantially flat plate-like ribs (25), and the lower frame ( Increase the bending rigidity of 20b).
  • the thickness (front-rear dimension) of the back plate (21) is gradually decreased as the lower side increases toward the upper end, similarly to the side frame (20a). As shown in the figure, both sides are large and formed so as to gradually become smaller toward the center.
  • a large number of longitudinally slit-like openings (27) are drilled in a regular arrangement at regular intervals in the vertical and horizontal directions. That is, the left and right openings (27) adjacent to each other are perforated in a staggered manner in the left-right direction in such a manner that the vertical positions are alternately changed by approximately half the vertical dimension, and the upper and lower openings
  • the openings (27) are formed in a straight line adjacent to each other.
  • the thickness (front-rear dimension) of the connecting piece (21a) which is vertically continuous between the openings (27) adjacent to each other on the left and right in the back plate (21) is As shown in its width (left Larger than the right dimension).
  • the thickness (front-rear dimension) of the connecting piece (21b) between the openings (27) arranged in the vertical direction is made smaller than the thickness of the connecting piece (21a).
  • the cross-sectional shape of the portion is substantially U-shaped in a plan view.
  • the connecting piece (21a) between the left and right adjacent openings (27) forms a substantially rectangular cross section that is long in the front-rear direction !, the strength of the back plate (21) may be reduced. Flower ,.
  • the back frame mounting rod ( A mounting hole (28) with a rectangular cross-section that opens at the lower end that complements the shape of (14) is formed by urging in the vertical direction, and this mounting hole (28) has an upper end of the above-described backrest support rod (8).
  • the prism-shaped back frame mounting rod (14) attached to is properly fitted and fixed together with the armrest (29) as follows.
  • the groove (22) formed on the outer surface of the lower end portion of the side frame (20a) of the back frame (20) is connected to the inner end of the armrest (29). Fit the downward mounting part (29a) and insert it into the two upper and lower stepped holes (31) formed on the back surface of the concave groove (30) on the outer surface of this downward mounting part (29a) from the outside.
  • the back frame mounting rod (14) mounted on the back support rod (8), the side frame (20a) of the back frame (20), and the armrest (29) are connected to two bolts ( Tightened together by 32).
  • the downward mounting portion (29a) of the armrest (29) is fitted and fixed in the concave groove (22) of the side frame (20a), it does not wobble in the front-rear and vertical directions.
  • a stepped hole (30a) in the side frame (20a) is provided in the threaded portion of the bolt (3 2) on the inner surface of the downward mounting portion (29a) of the armrest (29).
  • a protrusion (34) fitted to the outer large-diameter portion in 26) is provided so as to facilitate positioning when attached to the side frame (20a).
  • the lower mounting portion (29a) and the lower side of the side frame (20a) are respectively provided on the upper surface of the shaft-like support portion (13) at the upper end of the backrest support rod (8).
  • the head of the bolt (32) is located in the outer diameter of the recessed groove (30) of the downward mounting portion (29a) and inside the large diameter portion on the outer side of the stepped hole (31). Do not expose to the outside of (29).
  • the back frame (20) of the backrest (19) has a relatively thin plate shape continuous with the back plate (21). Experience and improve the appearance.
  • the side frame (20a) and the lower frame (20b) of the back frame (20) each have an outward U-shaped cross section, and the opposing surfaces of the concave groove (22X24) formed on the outer surface and the lower surface Are connected by a large number of plate-shaped ribs (23X25), so that the back frame (20) is plate-shaped, but the bending load in the front-rear direction increases the load on the back of the seated person.
  • the backrest (19) is pressed backward, only the backboard (21) effectively squeezes backward, which improves the comfort of sitting.
  • the front and rear dimensions (plate thickness) of the side frame (20a) and the back plate (21) of the back frame (20) gradually decrease toward the upper end, the backrest (19 ) Is strongly pressed, the upper part of the back frame (20) with increased rigidity squeezes backwards moderately, and the upper part of the back plate (21) also becomes easier to squeeze backwards, making the upper part of the back particularly comfortable. Can be supported.
  • the back and front dimensions of the back plate (21) including the connecting piece (21a) are gradually reduced from both sides toward the center, so that the back plate (21) to which the back pressure (21) is applied most greatly is applied. The more the center, the greater the flexural rigidity, and the easier it is to squeeze backwards, so that the entire back as well as the center of the back is comfortably supported.
  • a large number of openings (27) arranged in the vertical direction are formed on the entire surface of the back plate (21), and the center of the rear surface of the connecting piece (21b) between the upper and lower openings (27) is formed. Because it is thin and easy to expand backward, the back plate (21) swells in a convex shape around the many openings (27) facing the top and bottom, and fits the entire back. By doing so, a comfortable sitting comfort can be obtained.
  • the connecting piece (21a) that is continuous in the vertical direction between the openings (27) adjacent to the left and right has a rib-like cross-sectional shape that is longer in the front-rear direction than in the left-right dimension. In (21), the sag rigidity in the front-rear direction perpendicular to the width direction is high. Therefore, the strength of the back plate (21) does not decrease despite the large number of openings (27).
  • FIG. 12 is a front view of another chair to which the present invention is applied
  • FIG. 13 is an enlarged front view of the backrest.
  • the shape of the back plate (21) is different from the above embodiment, and other than that, since it has the same structure, the same members are only given the same reference numerals, and the details thereof are as follows. The detailed explanation is omitted.
  • the thickness (front-rear dimension) of the back plate (21) is gradually decreased according to the direction of the upper end where the lower side is larger, and gradually decreased toward the center where both sides are larger. (See Fig. 14 and Fig. 15).
  • an opening (36) force that forms a horizontally-extending flat hexagonal shape (36) force is shifted in the horizontal direction by approximately 1Z2 pitch so that it is aligned on the X-ray vertically and horizontally Well-regulated! /, Many formed in an array!
  • the connecting piece (37) connected so as to surround each opening (36), that is, the right and left connecting the openings (36) adjacent to each other in the left-right direction.
  • the front-rear dimension (L) is larger than the wall thickness (t), and the cross-sectional shape is a long rectangle in the front-rear direction.
  • the present invention is not limited to the above embodiment.
  • the opening (27) adjacent to the left and right sides of the back plate (21) is drilled in a staggered pattern in the left-right direction with different vertical positions.
  • the upper and lower ends of each opening (27) arranged in a row may be aligned in the left-right direction.
  • the vertical dimension of the opening (27) Different methods may be combined and arranged as appropriate.
  • the shape of the opening (36) of the back plate (21) in the embodiment shown in FIG. 12 and subsequent figures may be, for example, a lateral rhombus, an ellipse, or a polygon other than a hexagon.
  • the present invention can also be applied to a simple chair as described in Patent Document 1 described above.
  • a back support rod that faces upward is fixed to the upper ends of a pair of left and right rear legs that form a part of the leg, and the back frame mounting rod that is erected on the upper end is similar to the above-described embodiment.
  • the backrest (19) can be attached and the armrest (29) can be fastened together with bolts.
  • the present invention can also be applied to a chair without an armrest (29). At this time, insert a slightly shorter bolt (3 2) from the stepped hole (26) of the side frame (20a) and screw it directly into the female screw hole (33) of the back frame mounting rod (14). do it. If the upper end of the backrest support ridge (8) is shaped to fit into the mounting hole (28) of the side frame (20a), the back frame (8) Install the lower end of 20) directly.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

La présente invention concerne un dossier de chaise, dans lequel un panneau est facilement flexible sans réduction de sa résistance, rendant ainsi la chaise confortable pour s’asseoir dessus. Les extrémités inférieures des côtés gauche et droit à la fois du cadre arrière (20) sont soutenues au niveau des deux côtés à l’arrière d’un corps de montant, et le panneau arrière souple (21) est formé sur l’intérieur de cadres arrière (20). Un grand nombre d’ouvertures (27) est formé dans le panneau (21) de manière à être proches les unes des autres dans les sens de haut en bas et de gauche à droite. Entre les ouvertures (27) adjacentes entre elles dans le sens de gauche à droite, est formée une partie de connexion (21a) continuant dans le sens de haut en bas, et la dimension dans le sens d’avant en arrière de ladite partie (21a) est faite plus grande que la dimension dans le sens de gauche à droite de la partie de connexion (21a).
PCT/JP2006/321942 2005-11-04 2006-11-02 Dossier de chaise WO2007052734A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP06822862.6A EP1946677B1 (fr) 2005-11-04 2006-11-02 Dossier de chaise
CA2628209A CA2628209C (fr) 2005-11-04 2006-11-02 Support dorsal integre a une chaise
CN200680041240XA CN101415352B (zh) 2005-11-04 2006-11-02 椅子靠背装置
US12/092,290 US8191970B2 (en) 2005-11-04 2006-11-02 Backrest device in a chair

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP2005-320761 2005-11-04
JP2005-320759 2005-11-04
JP2005-320762 2005-11-04
JP2005320761A JP2007125221A (ja) 2005-11-04 2005-11-04 椅子の背凭れ装置
JP2005320760A JP4448487B2 (ja) 2005-11-04 2005-11-04 椅子の背凭れ装置
JP2005320759A JP4295265B2 (ja) 2005-11-04 2005-11-04 椅子の背凭れ装置
JP2005320762A JP4295266B2 (ja) 2005-11-04 2005-11-04 椅子の背凭れ装置
JP2005-320760 2005-11-04
JP2005340235A JP2007143716A (ja) 2005-11-04 2005-11-25 椅子の背凭れ装置
JP2005-340235 2005-11-25

Publications (1)

Publication Number Publication Date
WO2007052734A1 true WO2007052734A1 (fr) 2007-05-10

Family

ID=38005887

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/321942 WO2007052734A1 (fr) 2005-11-04 2006-11-02 Dossier de chaise

Country Status (6)

Country Link
US (1) US8191970B2 (fr)
EP (1) EP1946677B1 (fr)
JP (5) JP4295266B2 (fr)
CN (1) CN101415352B (fr)
CA (1) CA2628209C (fr)
WO (1) WO2007052734A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009060645A1 (fr) * 2007-11-09 2009-05-14 Uchida Yoko Co., Ltd. Structure de dossier de siège
US8172332B2 (en) 2006-11-10 2012-05-08 Okamura Corporation Chair backrest device
CN103799730A (zh) * 2012-11-06 2014-05-21 国誉家具株式会社 椅子
JP2017506948A (ja) * 2014-02-28 2017-03-16 エボリュ—ション テクノロジーズ インク 歩行器装置および歩行器装置用背もたれ
JP2017202320A (ja) * 2016-05-09 2017-11-16 エボリュ—ション テクノロジーズ インク 歩行器装置および歩行器装置用背もたれ

Families Citing this family (41)

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Publication number Priority date Publication date Assignee Title
JP5078390B2 (ja) * 2006-08-30 2012-11-21 株式会社イトーキ 椅子
JP5521206B2 (ja) * 2008-05-09 2014-06-11 コクヨ株式会社 椅子の背凭れ部材
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JP2007143716A (ja) 2007-06-14
JP2007125219A (ja) 2007-05-24
EP1946677A1 (fr) 2008-07-23
EP1946677B1 (fr) 2015-08-26
US8191970B2 (en) 2012-06-05
EP1946677A4 (fr) 2013-06-12
US20090127914A1 (en) 2009-05-21
JP2007125220A (ja) 2007-05-24
CN101415352B (zh) 2012-06-13
CA2628209A1 (fr) 2007-05-10
CA2628209C (fr) 2013-06-04
JP2007125222A (ja) 2007-05-24
JP2007125221A (ja) 2007-05-24

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